package OJDemo输入输出;

import java.util.Scanner;

/**
 * @author zc
 * @version 1.0
 * @date 2021/9/7 10:28
 */
public class Main2 {

    public static void main(String[] args) {
        Scanner cin = new Scanner(System.in);
        int a, b;
        while(true)//这样写效果一样 但是OJ会报错
        {
            a = cin.nextInt();
            b = cin.nextInt();
            System.out.println(a + b);
        }
    }

}
